Correction status:Uncorrected
Teacher's comments:
PHP使用ajax无刷新注册再次使用$.post 发送与接收数据。使用if和switch语句进行判断输出结果。
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>实例:php来处理表单</title> <style type="text/css"> table { background-color: lightgreen; box-shadow: 5px 5px 5px #888; border-radius: 15px; padding: 15px; margin: 50px auto; } table td{ padding: 8px; } table caption { font-size: 1.5em; margin-bottom: 10px; } textarea { resize: none; } form button{ width: 100px; height: 30px; border:none; background-color:skyblue; color:white; } form button:hover{ background-color: orange; font-size: 1.2em; cursor:pointer; } input{ background-color: skyblue; border-radius: 10px; padding: 10px; } </style> </head> <body> <form id="register"> <table> <caption>用户注册</caption> <tr> <td><label for="email">邮箱</label></td> <td><input type="text" name="name" id="email" autofocus=""></td> </tr> <tr> <td><label for="password1">密码</label></td> <td><input type="password" name="password1" id="password1" ></td> </tr> <tr> <td><label for="password2">确认密码</label></td> <td><input type="password" name="password2" id="password2" ></td> </tr> <tr> <td><label for="secret">性别</label></td> <td><input type="radio" name="gender" id="male" value="male"> <label for="male">男</label> <input type="radio" name="gender" id="female" value="female"> <label for="female">女</label> <input type="radio" name="gender" id="secret" value="secret" checked=""> <label for="secret">保密</label></td> </tr> <tr> <td><label for="level">级别</label></td> <td> <select name="level" id="level"> <option value="0">初级</option> <option value="1" selected="">中级</option> <option value="2">高级</option> </select></td> </tr> <tr> <td><label>语言</label></td> <td><input type="checkbox" name="lang[]" id="php" value="php" checked=""><label for="php">php</label> <input type="checkbox" name="lang[]" id="java" value="java" ><label for="java">java</label> <input type="checkbox" name="lang[]" id="python" value="python" ><label for="python">python</label> <input type="checkbox" name="lang[]" id="java" value="java" ><label for="java">java</label></td> </tr> <tr> <td><label for="comment">简介</label></td> <td><textarea name="comment" id="comment" rows="3" cols="30"></textarea></td> </tr> <tr> <td colspan="2"><button type="button" name="submit" id="submit">提交</button></td> </tr> </table> </form> <script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.js"></script> <script type="text/javascript"> //所有的表单数据验证全部使用ajax完成请求类型为post但是为了代码的简洁和可读性操作类型使用get $('#email').blur(function(){ $.post( 'admin/check.php?check=email', 'email='+$('#email').val(), function(data){ switch(data.status){ case 0: $('td').find('span').remove() $('#email').after('<span>').next().text(data.msg).css('color','red').prev().focus() break; case 1: $('td').find('span').remove() $('#email').after('<span>').next().text(data.msg).css('color','red').prev().focus() break; case 2: $('td').find('span').remove() $('#email').after('<span>').next().text(data.msg).css('color','green') break; } },'json') }) //验证密码 $('#password1').blur(function(){ if ($('#email').val().length == 0) { return false } $.post( 'admin/check.php?check=password1', 'password1='+$('#password1').val(), function(data){ if (data.status ==0) { $('td').find('span').remove() $('#password1').after('<span>').next().text(data.msg).css('color','red') } },'json') }) //验证密码 $('#password2').blur(function(){ if ($('#email').val().length == 0 || $('#password1').val().length == 0) { return false } $.post( 'admin/check.php?check=password2', { password1: $('#password1').val(), password2: $('#password2').val() }, function(data){ switch(data.status){ case 0: $('td').find('span').remove() $('#password2').after('<span>').next().text(data.msg).css('color','red').prev().focus() break; case 1: $('td').find('span').remove() $('#password2').after('<span>').next().text(data.msg).css('color','red') break; case 2: $('td').find('span').remove() $('#password2').after('<span>').next().text(data.msg).css('color','green') break; } },'json') }) // 验证文本框 $('#comment').blur(function(){ if ($('#email').val().length == 0 || $('#password1').val().length == 0 ||$('#password2').val().length == 0) { return false } $.post( 'admin/check.php?check=comment', 'comment='+$('#comment').val(), function(data){ switch(data.status){ case 0: $('td').find('span').remove() $('#comment').after('<span>').next().text(data.msg).css('color','red').prev().focus() break; case 1: $('td').find('span').remove() $('#comment').after('<span>').next().text(data.msg).css('color','red') break; case 2: $('td').find('span').remove() $('#comment').after('<span>').next().text(data.msg).css('color','green') break; } },'json') }) //提交验证 $('#submit').click(function(){ $.post('admin/check.php?check=submit', 'submit='+$('#register').serialize(), function(data){ alert(data) }) }) </script> </body> </html>
使用$_GET方式进行验证,if和switch语句进行判断输出,结果进行json_encode输出
<?php // echo '<pre>'; // print_r($_POST); // echo $_GET['check']; switch ($_GET['check']) { //验证邮箱 case 'email': $email = $_POST['email']; if(empty($email)){ exit(json_encode(['status'=>0,'msg'=>'邮箱不能为空'])); }else if(in_array($email,['admin@php.cn','wo@gmail.com'])){ exit(json_encode(['status'=>1,'msg'=>'邮箱已占用'])); }else { exit(json_encode(['status'=>2,'msg'=>'邮箱可以用'])); } break; //验证密码 case 'password1': $pwd1 = $_POST['password1']; if(empty($pwd1)){ exit(json_encode(['status'=>0,'msg'=>'密码不能为空'])); } break; //验证确认密码 case 'password2': $pwd1 = $_POST['password1']; $pwd2 = $_POST['password2']; if (empty($pwd2)) { exit(json_encode(['status'=>0,'msg'=>'密码不能为空'])); }else if($pwd1 != $pwd2){ exit(json_encode(['status'=>1,'msg'=>'两次密码不相同'])); }else{ exit(json_encode(['status'=>2,'msg'=>'验证通过'])); } break; //验证文本框 case 'comment': $cmt = $_POST['comment']; if (empty($cmt)) { exit(json_encode(['status'=>0,'msg'=>'不能为空'])); }else if(mb_strlen(trim($cmt) <= 20)){ exit(json_encode(['status'=>1,'msg'=>'不能少于20个字符'])); }else{ exit(json_encode(['status'=>2,'msg'=>'验证通过'])); } break; case 'submit': { exit('恭喜,注册成功');} } ?>
执行结果如下图
总结: 1.经过此次的书写,对$.post() 和switch等语句有了更进步的掌握和熟练运用,$.post()返回方式使用text或者json输出不能忘记书写。
2,ajax对于无刷新注册提交数据,得到了更深入的体会。
3,表单验证使用来说要加强书写,结束完语句要有分号(;)标志,不能忘记。